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参数资料
| 型号： | MAX6448UK23L+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC MPU RESET 2.313V SOT23-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 2.313V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SC-74A，SOT-753 |
| 供应商设备封装： | SOT-23-5 |
| 包装： | 带卷 (TR) |
19-2656; Rev 3; 6/10
μP Reset Circuits with Long Manual Reset
Setup Period
General Description
The MAX6443–MAX6452 low-current microprocessor
reset circuits feature single or dual manual reset inputs
with an extended setup period. Because of the extend-
ed setup period, short switch closures (nuisance resets)
are ignored.
On all devices, the reset output asserts when any of the
monitored supply voltages drops below its specified
threshold. The reset output remains asserted for the
reset timeout period (210ms typ) after all monitored
supplies exceed their reset thresholds. The reset output
is one-shot pulse asserted for the reset timeout period
(140ms min) when selected manual reset input(s) are
held low for an extended setup timeout period. These
devices ignore manual reset transitions of less than the
extended setup timeout period.
The MAX6443–MAX6448 are single fixed-voltage μP
supervisors. The MAX6443/MAX6444 have a single
extended manual reset input. The MAX6445/MAX6446
have two extended manual reset inputs. The MAX6447/
MAX6448 have one extended and one immediate manual
reset input.
The MAX6449–MAX6452 have one fixed-threshold μP
Features
o Single- or Dual-Supply Voltage Monitors
o Precision Factory-Set Reset Thresholds from
1.6V to 4.6V
o Adjustable Threshold to Monitor Voltages Down
to 0.63V (MAX6449–MAX6452)
o Single or Dual Manual Reset Inputs with Extended
Setup Period
o Optional Short Setup Time Manual Reset Input
(MAX6447/MAX6448 and MAX6451/MAX6452)
o Immune to Short Voltage Transients
o Low 6 μ A Supply Current
o Guaranteed Valid Reset Down to V CC = 1.0V
o Active-Low RESET (Push-Pull or Open-Drain)
Outputs
o 140ms (min) Reset Timeout Period
o Small SOT143 and SOT23 Packages
Ordering Information
supervisor and one adjustable-threshold μP supervisor.
The MAX6449/MAX6450 have two delayed manual
reset inputs. The MAX6451/MAX6452 have one delayed
and one immediate manual reset input.
PART
MAX6443 US_ _ _-T
MAX6444 US_ _ _-T
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
4 SOT143
4 SOT143
The MAX6443 –MAX6452 have an active-low RESET
with push-pull or open-drain output logic options. These
devices, offered in small SOT packages, are fully guar-
anteed over the extended temperature range (-40°C to
+85°C).
Applications
Set-Top Boxes
Consumer Electronics
DVD Players
Cable/DSL Modems
MP3 Players
Industrial Equipment
Note: The first “_ _ ” is a placeholder for the threshold voltage
level of the devices. A desired threshold level is set by the two-
number suffix found in Table 1. The third "_" is a placeholder
for the manual reset setup period of the devices. A desired
setup period is set by the letter suffix found in Table 2. All
devices are available in tape-and-reel only. There is a 2500-
piece minimum order increment for standard versions (Table
2). Sample stock is typically held on standard versions only.
Nonstandard versions require a minimum order increment of
10,000 pieces. Contact factory for availability.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
Pin Configurations
TOP VIEW
Automotive
Medical Devices
GND 1
RESET 2
MAX6443
MAX6444
4 V CC
3 MR1
SOT143
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6448UK26L | 制造商:Maxim Integrated Products 功能描述:+P RESET CIRCUITS WITH LONG MANUAL - Cut Tape Product |
| MAX6448UK26L+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 2.63V 7UA 5PIN SOT-23 - Rail/Tube |
| MAX6448UK26L+T | 功能描述:监控电路 Single uPower Reset Circuit RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6448UK26L-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6448UK29L | 制造商:Maxim Integrated Products 功能描述:+P RESET CIRCUITS WITH LONG MANUAL - Cut Tape Product |
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